php - Ajax internal server error in Symfony -

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so have problem symfony 2. "internal server error". below ajax call 

$.ajax({     url: resource_url + '/delete',     type: 'post',     success: function(result){         $(row).fadeout(function(){             $(this).remove();             show_msg_box('#msg-box', 'successfully deleted <strong>' + job_name + '</strong>!');             if(!has_table_row('.jwobs-table', 'tr.app-row')){                 $('tr.app-norow').fadein();             }         });     } });

and content of function being called in url

public function ajaxdeleteaction($job) {     return $this->forward('web.api.job:deleteaction', $job); }

and function route above being forwarded to

public function deleteaction($job) {     $con = \propel::getconnection();      $sql = "delete tb_job id = ".$job."";     $prep = $con->prepare($sql);     $prep->execute();      $this->response->setstatuscode(http\response::http_no_content);     return $this->response; }

but whenever run through code, im getting internal server error this:

post <my route here> 500 (internal server error)  send m.extend.ajax (anonymous function) m.event.dispatch r.handle

im using amazon web services btw. in advance can me.


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